Great work Abi, Paulo and Stefan! Le sam. 21 août 2021 à 20:10, Ekaterina Dimitrova <e.dimitr...@gmail.com> a écrit :
> Thank you for all your time and efforts Abi, Paulo and Stefan! > > Abi, I hope you had also some fun around the work done and this was only > the beginning of a continuous collaboration with the community. > > On Fri, 20 Aug 2021 at 11:50, Jonathan Ellis <jbel...@gmail.com> wrote: > > > Thank you, Abi! And thanks to Stefan and Paulo for mentoring! > > > > On Fri, Aug 20, 2021 at 10:43 AM Paulo Motta <pa...@apache.org> wrote: > > > > > Hi everyone, > > > > > > Just a heads up to the community that we're wrapping up the Google > Summer > > > of Code project this year. > > > > > > Abi Palagashvili worked with us in the last couple of months to provide > > TTL > > > support to nodetool snapshots on CASSANDRA-16789 < > > > https://issues.apache.org/jira/browse/CASSANDRA-16789>, under mine and > > > Stefan Miklosovic's mentorship. We're in the final round of review > before > > > merging the feature and welcome anyone who wants to take a look in the > > > final patch and give feedback. > > > > > > After this change is shipped in the next major release, clients can > > supply > > > an optional --ttl parameter during nodetool snapshot creation and > > Cassandra > > > will automatically clean up expired snapshots, avoiding the need for > > > external management of snapshot cleanup. > > > > > > During the process of adding this feature we identified several > > improvement > > > areas and started an effort to modernize the snapshot module by > > > centralizing snapshot lifecycle management on a SnapshotManager class, > > > which is responsible for keeping track of active snapshots in memory > and > > > periodically cleaning them up when they expire. Right now we're only > > > managing "expiring" snapshots in this class, but we plan to migrate the > > > legacy snapshot lifecycle management to this class in follow-up tickets > > to > > > decouple it from the keyspace and table management classes. We > > > significantly increased the test coverage of the snapshot lifecycle and > > > added in-jvm tests to verify the feature. > > > > > > We plan to extend this feature before it's released on 4.1 by providing > > > support to pause/resume snapshot cleanup and also allow clients to > supply > > > TTL to auto snapshots (those optionally created during truncation, > table > > > drop or compaction), as well as integrate it with the ability of > clearing > > > snapshots created since a specific date < > > > https://issues.apache.org/jira/browse/CASSANDRA-16860>. The parent > task > > to > > > track future improvements in this area is CASSANDRA-16451 < > > > https://issues.apache.org/jira/browse/CASSANDRA-16451>. > > > > > > We thank Abi very much for his effort during the project and hope he > > stays > > > around in the community! > > > > > > Kind Regards, > > > > > > Paulo > > > > > > > > > -- > > Jonathan Ellis > > co-founder, http://www.datastax.com > > @spyced > > >
